How to cultivate Crassula
Today's focus is on how to cultivate Crassula and detailed knowledge of Crassula succulent cultivation techniques, which are very useful tips, recommended for collection!
Crassula is a large genus in the family Crassulaceae, with nearly 200 recognized succulents belonging to this genus. They are native to various parts of the world and may be one of the most popular succulent plants. In addition to the original varieties, there are many attractive varieties and hybrids.
In 1753, the famous Swedish botanist Carl Linnaeus first officially described Crassula as a genus with ten species.
The common name "Crassula" for the plant comes from the Latin word "crassus," meaning "thick," referring to the fleshy leaves.
Members of the Crassula genus are mostly annual or perennial plants, with both herbaceous and woody types, and some have underground tubers. They vary in size and growth habits. These succulents have fleshy leaves with interesting shapes and colors, and usually have lovely star-shaped flowers. Some species are monocarpic and die after flowering.
Growth conditions of Crassula
Crassula is one of the most popular succulent plants and can be grown indoors and outdoors without any issues.
1. Light
Crassula prefers full sun rather than shade. However, during the hottest part of summer, strong afternoon sunlight can burn the leaves of the plant. Many Crassula species become red, purple, pink, orange, or yellow during long daylight hours, but even the reddest plants will turn green in dim light.
If there is sufficient light, most Crassula can be grown indoors. Place your Crassula next to a south-facing window where it can receive at least 6 hours of direct sunlight.
2. Soil
Crassula is not particularly picky about soil pH, but they need well-draining, porous soil. Most Crassula can grow well in sandy or rocky soils. In their native habitats, Crassula plants usually grow in rock crevices.
3. Temperature
Crassula enjoys summer temperatures of 18 to 21 degrees Celsius. In winter, maintain around 10 degrees Celsius. Most Crassula can tolerate some frost, but extreme cold or heat can cause them to shed leaves and die. The biggest challenge for outdoor plants in winter is to protect them from temperatures below 32ºF (0ºC). Most varieties can be grown outdoors in USDA hardiness zones 9a to 10b, between 20 to 40°F (-6.7 to 4.4°C). However, in other places, you can bring potted plants indoors to overwinter.
Daily care of Crassula
Crassula is an ideal succulent plant for beginners.
1. Watering
It is recommended to use the "soak method" for Crassula, avoiding overwatering. In this method, the soil is soaked with water, slowly drained, and then watered again after it dries. Reduce watering in winter because if the soil remains moist for too long, your Crassula will rot. Increase watering during the growing season, as insufficient water can cause the lower leaves to fall off. In their native habitats, the leaves of Crassula will shrink when absorbing stored water and become plump after it rains.
2. Fertilizing
Crassula does not need much fertilizer. In early spring, when they start growing rapidly, organic fertilizer can be applied.
3. Repotting
If necessary, it is best to repot Crassula in spring, ensuring the soil is dry before starting to replant, and then gently remove the pot. Let your Crassula dry for about a week after repotting, then start watering to prevent root rot.
4. Pruning
Occasional pruning can keep Crassula healthy and compact. When the plant starts to become untidy, don't be afraid to prune. It's best to prune in spring or after flowering.
Jade plant is a popular choice among bonsai enthusiasts. Many people starting with bonsai begin with the Jade plant.
How to propagate Crassula
Crassula is usually propagated from leaves or stem cuttings.
1. Leaf propagation
The simplest method is to propagate Crassula with a single leaf. Select a healthy leaf and gently twist it off the stem. Place it on well-draining soil and keep the soil slightly moist.
2. Stem cuttings
The fastest propagation method for Crassula is stem cuttings. This method works best for branched plants. Select a healthy stem and remove it from the main plant. Let it develop a callus for a few days before placing it in a well-draining soil mixture. Water sparingly, keeping the soil moist before the cuttings root. Once rooted, you can treat it like a mature plant.
3. Sowing
Using seeds to propagate Crassula is the slowest method. Sow in spring or summer. Germination is best below 21°C. Do not cover these seeds with soil and avoid direct sunlight. They usually start germinating in 1 to 3 weeks. When the seedlings have at least three leaves, they can be transplanted into individual pots.
How to cultivate Crassula
Pests and diseases of Crassula
1. Pests
The main pests are mealybugs, spider mites, and aphids. Fortunately, they are relatively easy to control.
2. Diseases
Crassula is also susceptible to bacterial soft rot, powdery mildew, and black ring disease. These diseases are easy to identify and can be treated once detected.
Toxicity of Crassula
Crassula is generally non-toxic to humans and slightly toxic to cats, dogs, and some other animals.
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